$OpenBSD: patch-src_tools_qstring_cpp,v 1.2 2007/12/28 17:45:04 espie Exp $
--- src/tools/qstring.cpp.orig	Fri Feb  2 15:01:05 2007
+++ src/tools/qstring.cpp	Sun Oct 28 01:16:23 2007
@@ -5805,6 +5805,7 @@ QString QString::fromUtf8( const char* utf8, int len )
     result.setLength( len ); // worst case
     QChar *qch = (QChar *)result.unicode();
     uint uc = 0;
+    uint min_uc = 0;
     int need = 0;
     int error = -1;
     uchar ch;
@@ -5822,6 +5823,12 @@ QString QString::fromUtf8( const char* utf8, int len )
 			unsigned short low = uc%0x400 + 0xdc00;
 			*qch++ = QChar(high);
 			*qch++ = QChar(low);
+		    } else if (uc < min_uc || (uc >= 0xd800 && uc <= 0xdfff) || (uc >= 0xfffe)) {
+			// overlong seqence, UTF16 surrogate or BOM
+                        i = error;
+                        qch = addOne(qch, result);
+                        *qch++ = QChar(0xdbff);
+                        *qch++ = QChar(0xde00+((uchar)utf8[i]));
 		    } else {
 			*qch++ = uc;
 		    }
@@ -5844,14 +5851,17 @@ QString QString::fromUtf8( const char* utf8, int len )
 		uc = ch & 0x1f;
 		need = 1;
 		error = i;
+		min_uc = 0x80;
 	    } else if ((ch & 0xf0) == 0xe0) {
 		uc = ch & 0x0f;
 		need = 2;
 		error = i;
+		min_uc = 0x800;
 	    } else if ((ch&0xf8) == 0xf0) {
 		uc = ch & 0x07;
 		need = 3;
 		error = i;
+		min_uc = 0x10000;
 	    } else {
 	        // Error
                 qch = addOne(qch, result);
